diff options
Diffstat (limited to 'src/devices/bus/archimedes/podule/scanlight.cpp')
-rw-r--r-- | src/devices/bus/archimedes/podule/scanlight.cpp | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/src/devices/bus/archimedes/podule/scanlight.cpp b/src/devices/bus/archimedes/podule/scanlight.cpp new file mode 100644 index 00000000000..8453e04f3b4 --- /dev/null +++ b/src/devices/bus/archimedes/podule/scanlight.cpp @@ -0,0 +1,227 @@ +// license:BSD-3-Clause +// copyright-holders:Nigel Barnes +/********************************************************************** + + Computer Concepts Scanner Interface + + http://chrisacorns.computinghistory.org.uk/32bit_UpgradesA2G/CC_Scannerif.html + + Computer Concepts ScanLight Video 256 + + http://chrisacorns.computinghistory.org.uk/32bit_UpgradesA2G/CC_ScanlightVideo256.html + + TODO: + - implement scanner device + - implement frame grabber from video source. + +**********************************************************************/ + +#include "emu.h" +#include "scanlight.h" +#include "imagedev/avivideo.h" +#include "imagedev/picture.h" + + +namespace { + +// ======================> arc_scanlight_device + +class arc_scanlight_device : + public device_t, + public device_archimedes_podule_interface +{ +public: + // construction/destruction + arc_scanlight_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); + + static constexpr feature_type unemulated_features() { return feature::CAPTURE; } + +protected: + arc_scanlight_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock); + + // device-level overrides + virtual void device_start() override; + virtual void device_reset() override; + + // optional information overrides + virtual void device_add_mconfig(machine_config &config) override; + virtual const tiny_rom_entry *device_rom_region() const override; + + // device_archimedes_podule_interface overrides + virtual void ioc_map(address_map &map) override; + +//private: + required_memory_region m_podule_rom; + required_device<picture_image_device> m_picture; + + u8 m_rom_page; +}; + + +// ======================> arc_scanjunior_device + +class arc_scanjunior_device : public arc_scanlight_device +{ +public: + // construction/destruction + arc_scanjunior_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); + +protected: + // optional information overrides + virtual const tiny_rom_entry *device_rom_region() const override; +}; + + +// ======================> arc_scanvideo_device + +class arc_scanvideo_device : public arc_scanlight_device +{ +public: + // construction/destruction + arc_scanvideo_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); + +protected: + // optional information overrides + virtual void device_add_mconfig(machine_config &config) override; + virtual const tiny_rom_entry *device_rom_region() const override; + + // device_archimedes_podule_interface overrides + virtual void ioc_map(address_map &map) override; + +private: + required_device<avivideo_image_device> m_avivideo; + + u8 m_rom_bank; +}; + + +void arc_scanlight_device::ioc_map(address_map &map) +{ + map(0x0000, 0x1fff).lr8(NAME([this](offs_t offset) { return m_podule_rom->base()[offset | ((m_rom_page << 11) & 0x7800)]; })).umask32(0x000000ff); + map(0x2000, 0x2000).lw8(NAME([this](u8 data) { m_rom_page = data; })); +} + +void arc_scanvideo_device::ioc_map(address_map &map) +{ + map(0x0000, 0x1fff).lr8(NAME([this](offs_t offset) { return m_podule_rom->base()[offset | ((m_rom_page << 11) & 0xf800)]; })).umask32(0x000000ff); + map(0x2000, 0x2000).lw8(NAME([this](u8 data) { m_rom_page = data | (m_rom_bank << 4); })); +} + + +//------------------------------------------------- +// ROM( scanlight ) +//------------------------------------------------- + +ROM_START( scanlight ) + ROM_REGION(0x8000, "podule_rom", 0) + ROM_LOAD("scan-light.rom", 0x0000, 0x8000, CRC(6ba1764b) SHA1(fa69fb69e01553b27409b65a37d3d30a376e7380)) +ROM_END + +ROM_START( scanjunior ) + ROM_REGION(0x8000, "podule_rom", 0) + ROM_LOAD("scan-light_jr.rom", 0x0000, 0x8000, CRC(bf1b8268) SHA1(3c63f8379d8fc222fc57838a9384ecec7c5d2484)) +ROM_END + +ROM_START( scanvideo ) + ROM_REGION(0x10000, "podule_rom", 0) + ROM_LOAD("video256_1.20.rom", 0x0000, 0x10000, CRC(3e9a44b8) SHA1(9fe739b42c5bf5dab69e3c1ffb1c3c5a5d8d7a50)) +ROM_END + + + +const tiny_rom_entry *arc_scanlight_device::device_rom_region() const +{ + return ROM_NAME( scanlight ); +} + +const tiny_rom_entry *arc_scanjunior_device::device_rom_region() const +{ + return ROM_NAME( scanjunior ); +} + +const tiny_rom_entry *arc_scanvideo_device::device_rom_region() const +{ + return ROM_NAME( scanvideo ); +} + + +//------------------------------------------------- +// device_add_mconfig - add device configuration +//------------------------------------------------- + +void arc_scanlight_device::device_add_mconfig(machine_config &config) +{ + IMAGE_PICTURE(config, m_picture); +} + +void arc_scanvideo_device::device_add_mconfig(machine_config &config) +{ + arc_scanlight_device::device_add_mconfig(config); + + IMAGE_AVIVIDEO(config, m_avivideo); +} + + +//************************************************************************** +// LIVE DEVICE +//************************************************************************** + +//------------------------------------------------- +// arc_scanlight_device - constructor +//------------------------------------------------- + +arc_scanlight_device::arc_scanlight_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock) + : device_t(mconfig, type, tag, owner, clock) + , device_archimedes_podule_interface(mconfig, *this) + , m_podule_rom(*this, "podule_rom") + , m_picture(*this, "srcimg") + , m_rom_page(0) +{ +} + +arc_scanlight_device::arc_scanlight_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) + : arc_scanlight_device(mconfig, ARC_SCANLIGHT, tag, owner, clock) +{ +} + +arc_scanjunior_device::arc_scanjunior_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) + : arc_scanlight_device(mconfig, ARC_SCANJUNIOR, tag, owner, clock) +{ +} + +arc_scanvideo_device::arc_scanvideo_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) + : arc_scanlight_device(mconfig, ARC_SCANVIDEO, tag, owner, clock) + , m_avivideo(*this, "srcavi") + , m_rom_bank(1) +{ +} + + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void arc_scanlight_device::device_start() +{ + save_item(NAME(m_rom_page)); +} + +//------------------------------------------------- +// device_reset - device-specific reset +//------------------------------------------------- + +void arc_scanlight_device::device_reset() +{ + m_rom_page = 0xff; +} + +} // anonymous namespace + + +//************************************************************************** +// DEVICE DEFINITIONS +//************************************************************************** + +DEFINE_DEVICE_TYPE_PRIVATE(ARC_SCANLIGHT, device_archimedes_podule_interface, arc_scanlight_device, "arc_scanlight", "Computer Concepts ScanLight") +DEFINE_DEVICE_TYPE_PRIVATE(ARC_SCANJUNIOR, device_archimedes_podule_interface, arc_scanjunior_device, "arc_scanjunior", "Computer Concepts ScanLight Junior") +DEFINE_DEVICE_TYPE_PRIVATE(ARC_SCANVIDEO, device_archimedes_podule_interface, arc_scanvideo_device, "arc_scanvideo", "Computer Concepts ScanLight Video 256") |